Static task
static1
Behavioral task
behavioral1
Sample
R3nzSkin.dll
Resource
win7-20231215-en
Behavioral task
behavioral2
Sample
R3nzSkin.dll
Resource
win10v2004-20231215-en
General
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Target
R3nzSkin.dll
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Size
744KB
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MD5
0ee034f7631f7ceba119e1573f2c2781
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SHA1
605efc35599814f50d3e3c5c3b25760a093a55d7
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SHA256
aa11e9d5b84487e28b0e003406b3a8d3d595ed9a9f1234a567548fa57aa06ce1
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SHA512
ef9c7cd701543c7d8411346ea7ebe9f817e10deca38fc923bba7d86ea0904a881f6941cf220400f47dcb9cb6fff0bab786c8cdf38b3568a7b0cd212e1eaec0c3
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SSDEEP
12288:PyGLf8DoCtYidrGEz/YOaP6lcG6YhQSn1UkDgubpxLggWTKc1nToaA1:Pq0idr1z/BaiKSnuAguNx0gGKc1nTtA1
Malware Config
Signatures
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Unsigned PE 1 IoCs
Checks for missing Authenticode signature.
resource R3nzSkin.dll
Files
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R3nzSkin.dll.dll windows:6 windows x64 arch:x64
Password: 1
1d3ae125c9fa70b475946ee6ae658c12
Headers
DLL Characteristics
IMAGE_DLLCHARACTERISTICS_HIGH_ENTROPY_VA
IMAGE_DLLCHARACTERISTICS_DYNAMIC_BASE
IMAGE_DLLCHARACTERISTICS_NX_COMPAT
File Characteristics
IMAGE_FILE_EXECUTABLE_IMAGE
IMAGE_FILE_LARGE_ADDRESS_AWARE
IMAGE_FILE_DLL
Imports
kernel32
QueryPerformanceCounter
GetModuleHandleW
VirtualQuery
DisableThreadLibraryCalls
GetCurrentThread
CloseHandle
ExitProcess
SetEndOfFile
WriteConsoleW
HeapSize
SetStdHandle
GetProcessHeap
FreeEnvironmentStringsW
GetEnvironmentStringsW
GetCommandLineW
GetCommandLineA
GetOEMCP
GetProcAddress
IsValidCodePage
HeapReAlloc
ReadConsoleW
EnumSystemLocalesW
GetUserDefaultLCID
IsValidLocale
GetLocaleInfoW
LCMapStringW
FlsFree
FlsSetValue
FlsGetValue
QueryPerformanceFrequency
GlobalUnlock
FlsAlloc
HeapAlloc
HeapFree
GetConsoleMode
WideCharToMultiByte
GlobalLock
GlobalAlloc
GlobalFree
GetACP
MultiByteToWideChar
GetConsoleOutputCP
WriteFile
FlushFileBuffers
GetFileType
LocalFree
FormatMessageA
GetLocaleInfoEx
CreateDirectoryW
CreateFileW
FindClose
FindFirstFileW
FindFirstFileExW
FindNextFileW
GetFileAttributesExW
AreFileApisANSI
GetLastError
GetFileInformationByHandleEx
ReleaseSRWLockExclusive
AcquireSRWLockExclusive
TryAcquireSRWLockExclusive
GetCurrentThreadId
Sleep
InitOnceComplete
InitOnceBeginInitialize
EnterCriticalSection
LeaveCriticalSection
InitializeCriticalSectionEx
DeleteCriticalSection
EncodePointer
DecodePointer
LCMapStringEx
GetSystemTimeAsFileTime
WakeAllConditionVariable
SleepConditionVariableSRW
GetStringTypeW
GetCPInfo
RtlCaptureContext
RtlLookupFunctionEntry
RtlVirtualUnwind
IsDebuggerPresent
UnhandledExceptionFilter
SetUnhandledExceptionFilter
GetStartupInfoW
IsProcessorFeaturePresent
GetCurrentProcessId
InitializeSListHead
GetCurrentProcess
TerminateProcess
RtlUnwindEx
RtlPcToFileHeader
RaiseException
InterlockedFlushSList
SetLastError
InitializeCriticalSectionAndSpinCount
TlsAlloc
TlsGetValue
TlsSetValue
TlsFree
FreeLibrary
LoadLibraryExW
ReadFile
CreateThread
ExitThread
FreeLibraryAndExitThread
GetModuleHandleExW
GetModuleFileNameW
GetFileSizeEx
SetFilePointerEx
GetStdHandle
RtlUnwind
user32
CloseClipboard
EmptyClipboard
GetClipboardData
SetClipboardData
OpenClipboard
CallWindowProcW
SetWindowLongPtrW
GetAsyncKeyState
SetWindowLongW
MessageBoxA
ScreenToClient
GetCapture
ClientToScreen
IsChild
TrackMouseEvent
GetForegroundWindow
LoadCursorW
SetCapture
SetCursor
GetClientRect
ReleaseCapture
SetCursorPos
GetCursorPos
shell32
SHGetKnownFolderPath
ole32
CoTaskMemFree
imm32
ImmSetCompositionWindow
ImmReleaseContext
ImmGetContext
d3dcompiler_47
D3DCompile
Sections
.text Size: 564KB - Virtual size: 563KB
IMAGE_SCN_CNT_CODE
IMAGE_SCN_MEM_EXECUTE
IMAGE_SCN_MEM_READ
.rdata Size: 144KB - Virtual size: 143KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.data Size: 5KB - Virtual size: 17KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
IMAGE_SCN_MEM_WRITE
.pdata Size: 25KB - Virtual size: 24KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
_RDATA Size: 512B - Virtual size: 500B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.rsrc Size: 1024B - Virtual size: 856B
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_READ
.reloc Size: 3KB - Virtual size: 2KB
IMAGE_SCN_CNT_INITIALIZED_DATA
IMAGE_SCN_MEM_DISCARDABLE
IMAGE_SCN_MEM_READ